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Mayweather vs McGregor

Mayweather is the long odds-on favourite at 1/12 with McGregor priced at 6/1.

And another bookmaker has already seen £135,000 staked since the fight was officially announced last night.

A Betfair spokesperson said: "Mayweather is widely considered the best boxer of his generation, while McGregor is the UFC’s biggest star, so it’s no surprise this could be one of the richest fights in history.

"And judging by the fact we’ve seen more than £100k bet on the fight in just 12 hours, we expect this to become the biggest boxing event of all time on Betfair Exchange."